10 5、8 IADC537 TCI Tricone Bit

11 5、8 IADC537 TCI Tricone Bit

12 1、4 IADC537 TCI Tricone Bit

12 1、4 IADC617 TCI Tricone Bit

12 1、4 IADC637 TCI Tricone Bit

13 5、8 IADC517 TCI Tricone Bit

14 3、4 IADC517 TCI Tricone Bit

17 1、2 IADC537 TCI Tricone Bit

17 1、2 IADC637 TCI Tricone Bit

3 7、8 IADC126 Milled Tooth Tricone Bit

4 1、2 IADC216 Milled Tooth Tricone Bit

4 3、4 IADC126 Milled Tooth Tricone Bit